Question 87199
Well, at that speed, you desewrved the ticket!
Your answer for the speed is correct, but let's get to the graph.
First, you need to identify the dependent and independent variables.
Since the distance is dependent upon the speed (x) at which you are trveling (for a constant time), speed is the dependent variable.  Let's call this D (for Distance)
So the independent variable would then be speed or x. And the time is a constant 1/2 hour.
So you could write:
{{{D = x(1/2)}}}
If you were to graph this, you'd get:
{{{graph(600,400,-5,110,-5,60,x/2)}}}
Where the horizontal axis is speed and the vertical axis is distance.